.box8{
    width: 100%;
    height: 780px;
    padding-top: 60px;
}
.box8_p1{
    text-align: center;
    font-size: 40px;
    font-family: "黑体";
    color: #232323;
    padding-bottom: 20px;
}
.box8_p2{
    text-align: center;
    font-size: 25px;
    font-family: "黑体";
    padding-bottom: 40px;
}
.box81{
    width: 80%;
    height: 500px;
    margin: auto;
    text-align: center;
}